Double Liner Charcoal Stove is the most efficient local charcoal stove. The stove is made up of metal sheet, round bars and two clay ceramic liners (fireboxes), which are bounded together to metal body by mixture of cement and rice husk ashes.

Intended to save a significant amount of charcoal consumed in the cooking meals in the households. Laboratory test revealed efficiency of about 44%. It is mostly used for cooking by using charcoal in households but sometimes the stove can as well be used in SMEs